The enhanced series of G2-CCD cameras feature highly sensitive, low noise Kodak Full-Frame CCD detectors. High-speed USB 2.0 interface minimizes download time and advanced analogue electronics ensure very low read noise. Efficient two-stage Peltier cooling keeps detectors cold to minimize dark current. Compact and robust camera head integrates all electronics, shutter and optional 5 or 6-positions filter wheel.
The G3 is available as a camera only, with or without an internal 1.25" 5 position filter wheel or internal 6 position filter wheel for unmounted filters.
Alternatively it can be purchased with an external but integrated 8 position 31mm or 1.25" filter wheel, 7 position 36mm filter wheel or 12 position 31mm/1.25"filter wheel and 10 position 36mm filter wheel. There is also an Off Axis Guider Option that delivers total back focus of 55mm with camera and filter wheel.
Number of features of cooled, slow-scan G2CCD cameras with USB 2.0 interface support demanding scientific applications:
Very high sensitivity.
Lowest possible system read noise, limited by CCD chip itself.
High dynamic range (16-bits digitization) and linear response.
Efficient and precisely regulated cooling.
Optional heat exchanger for liquid coolant.
Ability of unattended operation enabled by integrated shutter and filter wheel supporting UBVRI or narrow-band filters.
But G2CCD cameras are also designed with the needs of amateur astronomers in mind:
Compact camera head, small and lightweight enough to be attached even to small telescopes.
Integrated all-in-one design with USB and power connectors directly on the camera head.
Integrated shutter avoiding the need not to cover the telescope when taking dark frames.
Single-voltage power supply enabling operation from 12V battery or “brick” adapter.
Plug and play installation.
Robust construction to sustain every-day usage.
Rich software support.
But there are some features unique for the G2-8300 model:
Although the KAF8300 CCD detector has Full-Frame architecture, it is equipped with so-called anti-blooming gate (ABG), which protects electron leaks from saturated pixels to neighboring pixels when a bright star appears in the field of view. This makes the G2-8300 camera highly suitable for astro-imaging applications.
The CCD imaging area is somewhat larger that the clear aperture of standard filters in 1.25 inch filter cells. Such filter cells cause vignetting in the image corners. This is why the filter wheel with 6 positions is not offered with G2-8300 and filters for 5 positions filter wheel are not standard 1.25, but larger filters with 31 mm diameter.
31 mm filters do not cause vignetting on the vast majority of optical systems, but they are significantly cheaper and more compact compared to 2 inch filters or filters in M48 threaded cells.
G2 CCD cameras are supplied in a foam-filled, hard carrying case containing:
Camera body with an optional telescope adapter. The standard 2" barrel adapter is included by default. If ordered, the filter wheel is already mounted inside the camera head and filters are threaded into place (if ordered).
A 100-240 V AC input, 12 V DC output “brick” adapter with 1.8 m long power cable.
5 m long USB A-B cable for connecting camera to host PC.
A CD-ROM or USB Flash Drive with camera drivers, SIPS software package with electronic documentation and PDF version of User's Manual.
A printed copy of camera User's Manual
Sensor: Kodak KAF8300 Monochrome CCD
Aspect Ratio: 4:3
Resolution: 3358 x 2536 pixels
Quantum Efficiency: 55% max
Pixel Size: 5.4 x 5.4 µm
Interface: USB 2.0 (USB 1.1 compatible)
Cooling: Two-stage Peltier up to -50°C
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